private static string GetTypeName(DelegatePluginCatalogOptions options)
{
if (options?.TypeNameGenerator != null)
{
return(options.TypeNameGenerator(options));
}
return("GeneratedType");
}
private static string GetNamespace(DelegatePluginCatalogOptions options)
{
if (options?.NamespaceNameGenerator != null)
{
return(options.NamespaceNameGenerator(options));
}
return("GeneratedNamespace");
}
private static string GetMethodName(DelegatePluginCatalogOptions options)
{
if (options?.MethodNameGenerator != null)
{
return(options.MethodNameGenerator(options));
}
return("Run");
}
public DelegatePluginCatalog(MulticastDelegate multicastDelegate,
List <DelegateConversionRule> conversionRules = null,
PluginNameOptions nameOptions = null, DelegatePluginCatalogOptions options = null, string pluginName = null)
{
if (multicastDelegate == null)
{
throw new ArgumentNullException(nameof(multicastDelegate));
}
_multicastDelegate = multicastDelegate;
if (conversionRules == null)
{
conversionRules = new List <DelegateConversionRule>();
}
if (options != null)
{
_options = options;
}
else
{
_options = new DelegatePluginCatalogOptions();
}
_options.ConversionRules = conversionRules;
if (nameOptions == null)
{
nameOptions = new PluginNameOptions();
}
_options.NameOptions = nameOptions;
if (!string.IsNullOrWhiteSpace(pluginName))
{
_options.NameOptions.PluginNameGenerator = (pluginNameOptions, type) => pluginName;
}
}
public DelegatePluginCatalog(MulticastDelegate multicastDelegate, DelegatePluginCatalogOptions options) : this(multicastDelegate,
options?.ConversionRules, options?.NameOptions, options)
{
}
public Assembly CreateAssembly(MulticastDelegate multicastDelegate,
DelegatePluginCatalogOptions options)
{
var id = DelegateCache.Add(multicastDelegate);
var generator = new CodeToAssemblyGenerator();
generator.ReferenceAssemblyContainingType <Action>();
generator.ReferenceAssemblyContainingType <DelegateCache>();
generator.ReferenceAssemblyContainingType <DelegateToAssemblyConverter>();
var methodInfo = multicastDelegate.GetMethodInfo();
if (methodInfo == null)
{
throw new Exception("Couldn't get method info from delegate");
}
var parameters = methodInfo.GetParameters();
var returnType = methodInfo.ReturnType;
var allTypes = new List <Type>();
allTypes.AddRange(parameters.Select(x => x.ParameterType));
allTypes.Add(returnType);
var genTypes = new List <Type>();
foreach (var type in allTypes)
{
genTypes = GetGenericTypes(type, genTypes);
}
foreach (var genType in genTypes)
{
allTypes.Add(genType);
}
foreach (var allType in allTypes)
{
generator.ReferenceAssembly(allType.Assembly);
}
var code = new StringBuilder();
code.AppendLine("using System;");
code.AppendLine("using System.Diagnostics;");
code.AppendLine("using System.Threading.Tasks;");
code.AppendLine("using System.Text;");
code.AppendLine("using System.Collections;");
code.AppendLine("using System.Collections.Generic;");
foreach (var t in allTypes)
{
code.AppendLine($"using {t.Namespace};");
}
var constructorParameterNames = new List <string>();
var methodParameterNamesWithTypes = new List <string>();
var constructorParameterNamesWithTypes = new List <string>();
var constructorFielsNamesWithTypes = new List <string>();
var propertyNamesWithTypes = new List <string>();
// var propertyNames = new List<string>();
var delegateMethodParameters = new List <string>();
var conversionRules = options?.ConversionRules;
if (conversionRules == null)
{
conversionRules = new List <DelegateConversionRule>();
}
for (var index = 0; index < parameters.Length; index++)
{
var parameterInfo = parameters[index];
var parameterType = parameterInfo.ParameterType;
var parameterName = parameterInfo.Name ??
$"param{Guid.NewGuid().ToString().ToLowerInvariant().Replace("-", "")}";
var handled = false;
foreach (var conversionRule in conversionRules)
{
var canHandle = conversionRule.CanHandle(parameterInfo);
if (canHandle)
{
var conversionResult = conversionRule.Handle(parameterInfo);
if (!string.IsNullOrWhiteSpace(conversionResult.Name))
{
parameterName = conversionResult.Name;
}
if (conversionResult.ToConstructor)
{
constructorParameterNames.Add(parameterName);
constructorParameterNamesWithTypes.Add($"{GetFriendlyName(parameterType)} {parameterName}");
var fieldName = $"_{parameterName}";
constructorFielsNamesWithTypes.Add($"{GetFriendlyName(parameterType)} {fieldName}");
delegateMethodParameters.Add(fieldName);
handled = true;
break;
}
if (conversionResult.ToPublicProperty)
{
var propertyName = $"{CultureInfo.InvariantCulture.TextInfo.ToTitleCase(parameterName)}";
if (string.Equals(parameterName, propertyName))
{
propertyName = $"{propertyName}Prop";
}
propertyNamesWithTypes.Add($"{GetFriendlyName(parameterType)} {propertyName}");
delegateMethodParameters.Add(propertyName);
handled = true;
break;
}
methodParameterNamesWithTypes.Add($"{GetFriendlyName(parameterType)} {parameterName}");
delegateMethodParameters.Add(parameterName);
handled = true;
break;
}
}
if (handled)
{
continue;
}
methodParameterNamesWithTypes.Add($"{GetFriendlyName(parameterType)} {parameterName}");
delegateMethodParameters.Add(parameterName);
}
code.AppendLine();
code.AppendLine($"namespace {GetNamespace(options)}");
code.AppendLine("{");
code.AppendLine($"public class {GetTypeName(options)}");
code.AppendLine("{");
if (constructorParameterNames?.Any() == true)
{
foreach (var fieldNameWithType in constructorFielsNamesWithTypes)
{
code.AppendLine($"private {fieldNameWithType};");
}
code.AppendLine($"public {GetTypeName(options)}({string.Join(", ", constructorParameterNamesWithTypes)})");
code.AppendLine("{");
foreach (var constructorParameterName in constructorParameterNames)
{
code.AppendLine($"_{constructorParameterName} = {constructorParameterName};");
}
code.AppendLine("}"); // Close constructor
}
if (propertyNamesWithTypes?.Any() == true)
{
code.AppendLine();
foreach (var fieldNameWithType in propertyNamesWithTypes)
{
code.AppendLine($"public {fieldNameWithType} {{get; set;}}");
}
code.AppendLine();
}
if (typeof(void) != returnType)
{
code.AppendLine(
$"public {GetFriendlyName(returnType)} {GetMethodName(options)} ({string.Join(", ", methodParameterNamesWithTypes)})");
}
else
{
code.AppendLine(
$"public void Run ({string.Join(", ", methodParameterNamesWithTypes)})");
}
code.AppendLine("{");
code.AppendLine($"var deleg = Weikio.PluginFramework.Catalogs.Delegates.DelegateCache.Get(System.Guid.Parse(\"{id.ToString()}\"));");
if (typeof(void) != returnType)
{
code.AppendLine(
$"return ({GetFriendlyName(returnType)}) deleg.DynamicInvoke({string.Join(", ", delegateMethodParameters)});");
}
else
{
code.AppendLine(
$"deleg.DynamicInvoke({string.Join(", ", delegateMethodParameters)});");
}
code.AppendLine("}"); // Close method
code.AppendLine("}"); // Close class
code.AppendLine("}"); // Close namespace
var s = code.ToString();
var result = generator.Generate(s);
return(result);
}